RF Technology Pa50 Eclipse Series, Руководство по эксплуатации и обслуживанию

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RF Technology PA50 Page 7
6 SPECIFICATIONS
6.1 Physical Configuration
when the temperature rises above 40 degrees C. U201D is a comparator that switches
the TEMP LED on when the temperature rises above 90 degrees C. Q203 samples the
line output RF voltage to turn on the RFO LED.
6 Specifications
The PA50 is designed for use with the T50 exciter to provide 20 to 150 Watts output.
Output power regulation is performed by the exciter as it continually monitors PA
performance. The exciter also monitors important levels such as temperature reverse
power and drain currents to keep them within operating limits.
6.1 Physical Configuration
The PA50 is designed to fit into a 19 inch rack mounted frame. The installed height is
4RU or 178mm and the depth is 350mm The amplifier is 125mm wide. An extruded
aluminium heatsink with vertical fins and an enclosed fan is used. The temperature
rise can be as high as 50 degrees depending on output power.
6.2 Indicators and Test Points
Power On
Green LED
RF Power Yellow LED
Temperature 75 d Red LED
Forward Power DB9 pin 8 and GND
Reverse Power DB9 pin 4 and GND
O/P Drain Current DB9 pins 2 and 5
Driver Drain Current DB9 pins 6 and 5
+28V DB9 pin 5
GND DB9 pin 1
6.3 Electrical Specifications
6.3.1 Power Requirements
Operating Voltage
26 to 30VDC ( available O/P power reduced below 26V
)
Current Drain
Approx 10A at 28V and 100W O/P
Polarity Negative Ground
Frequency Range
PA50A25 to 32MHz
PA50B 30 to 40MHz
PA50C 38 to 50MHz